HP Serviceguard Extended Distance Cluster for Linux A.01.00 Deployment Guide, Second Edition, May 2008

Configuring your Environment for Software RAID
Configuring the Package Control Script and RAID Configuration File
Chapter 378
To Edit the XDC_CONFIG FILE parameter
In addition to modifying the DATA_REP variable, you must also set
XDC_CONFIG_FILE to specify the raid.conf file for this package. This file
resides in the package directory.
For example: XDC_CONFIG_FILE="$SGCONF/oracle_pkg/raid.conf”
To Configure the RAID Monitoring Service
After you have edited the variables in the XDC configuration file
(XDC_CONFIG_FILE), you must set up RAID monitoring as a service
within Serviceguard. Following is an example of how the file content
must look:
SERVICE_NAME[0]="RAID_monitor"
SERVICE_CMD[0]="$SGSBIN/raid_monitor '${XDC_CONFIG_FILE}'"
SERVICE_RESTART[0]=""
Ensure that this service is also configured in the package configuration
file as shown below:
SERVICE_NAME raid_monitor
SERVICE_FAIL_FAST_ENABLED YES
SERVICE_HALT_TIMEOUT 300
After editing the package control script, you must edit the raid.conf
file to enable Software RAID.
Editing the raid.conf File
The raid.conf file specifies the configuration information of the RAID
environment of the package. You must place a copy of this file in the
package directory of every package that you have enabled Software
RAID. The parameters in this file are:
• RPO_TARGET
Given a set of storage that is mirrored remotely, as in Figure 1-4, the
RPO_TARGET (Recovery Point Objective Target) is the maximum time
allowed between the expiration of the Link_Down_Timeout (t1 in
Figure 3-1, after the failure of the data links to the remote storage)
and the package starting up on the remote node (t4 on Figure 3-1). If